Rosemount Analytical 228 Operating Manual
Rosemount™ 228
Toroidal Conductivity Sensors
Reference Manual
LIQ-MAN-228, Rev V
April 2018
Safety Information
WARNING!
HIGH PRESSURE AND TEMPERATURE HAZARD
Before removing the senosr, reduce the process pressure to 0 psig and cool down the process temperature.
Failure to reduce the pressure and temperature may cause serious injury to personnel.
CAUTION!
EQUIPMENT DAMAGE
The wetted sensor materials may not be compatible with process composition and operating conditions. Application compatibility is
entirely your responsibility.
Contents
Contents
Chapter 1 Description and specifications ..........................................................................................1
1.1 Description .................................................................................................................................... 1
1.2 Unpacking and inspection .............................................................................................................. 1
1.3 Sensor Specifications ......................................................................................................................1
1.4 Ordering information ..................................................................................................................... 4
Chapter 2 Install ...............................................................................................................................5
2.1 Installing the sensor ....................................................................................................................... 5
2.2 Insertion/Retraction Assembly Installation Requirements .............................................................. 8
2.2.1 Manual Retraction Assembly ............................................................................................9
2.2.2 Mechanical Retraction Assembly (PN 23311-00) ............................................................12
2.2.3 Replacing Seals in Manual and Mechanical Retraction Assemblies ................................. 15
Chapter 3 Wiring ........................................................................................................................... 19
3.1 Wiring the Sensor .........................................................................................................................19
Chapter 4 Calibration ..................................................................................................................... 23
4.1 Sensor calibration .........................................................................................................................23
4.2 Calibrating against a Standard Solution ........................................................................................23
4.3 Calibrating against a Referee - in-Process ..................................................................................... 25
4.4 Calibrating against a Referee - Grab Sample ................................................................................. 26
Chapter 5 Maintaining and Troubleshooting .................................................................................. 29
5.1 Maintaining the sensor .................................................................................................................29
5.2 Troubleshooting .......................................................................................................................... 29
Chapter 6 Accessories .................................................................................................................... 31
Chapter 7 Return of Materials .........................................................................................................33
Rosemount 228 Sensor i
Contents
ii Reference Manual
Description and specifications
1 Description and specifications
1.1 Description
The Rosemount 222 toroidal flow through conductivity sensor measures conductivity in
highly conductive liquids up to 2 S/cm (2,000,000 μS/cm). A noninvasive flow through
design allows for in-line installations without any obstruction to sample and makes these
sensors ideal for use with viscous or fibrous liquids.
1.2 Unpacking and inspection
Complete the following steps when you unpack your instrument.
1. Inspect the shipping container. If there is damage, contact the shipper immediately
for instructions.
2. If there is no apparent damage, and remove the sensor.
3. Ensure that all items shown on the packing list are present. If items are missing,
contact your local Customer Care representative.
4. Save the shipping container and packaging.
They can be reused to return the sensor to the factory in case of damage.
1.3 Sensor Specifications
Sensor specificationsTable 1-1:
Sensor specification Description
Wetted materials Body materials either glass-filled PEEK, glass-filled Tefzel,
or unfilled Tefzel. Option -20 has EPDM gasket
Process connection -20: 5/8 in. 11 UNC, -21: 3/4 in. MNPT
Cable length 20 ft (6.1 m)
Maximum cable length 200 ft (61.0 m)
Weight/shipping weight 2 lb / 3 lb (1.0 kg / 1.5 kg)
Maximum operating temperature and pressureTable 1-2:
Maximum pressure (for
Body material option Maximum temperature Maximum pressure
-02 (Glass-filled PEEK
(standard temperature))
248 °F (120 °C) 295 psig (2135 kPa) 220 psig (1618 kPa [abs])
CRN registration only)
Rosemount 228 Sensor 1
Description and specifications
Maximum operating temperature and pressure (continued)Table 1-2:
Maximum pressure (for
Body material option Maximum temperature Maximum pressure
-03 (Glass-filled PEEK (high
temperature))
-04 (Glass-filled Tefzel) 248 °F (120 °C) 200 psig (1480 kPa) 150 psig (1135 kPa [abs])
-05 (Unfilled Tefzel) 248 °F (120 °C) 200 psig (1480 kPa) 150 psig (1135 kPa [abs])
392 °F (200 °C) 295 psig (2135 kPa) 220 psig (1618 kPa [abs])
CRN registration only)
Insertion adapter specificationsTable 1-3:
Maximum
pressure
Adapter
part number
23242-02 For use with
23242-03 For use with
2001990 For use with
Sensor compatibility
option -21
option -20
option -21
Process connection
1-1/2 in.
MNPT
1-1/2 in.
MNPT
2 in. MNPT CPVC
Wetted materials
316 stainless
steel, glassfilled PEEK,
Viton
316 stainless
steel, glassfilled PEEK,
Viton
Viton
Maximum
temperature
392 ° F
(200 °C)
392 °F
(200 °C)
100 °F
(38 °C)
185 °F (85 °C)45 psig (412
Maximum
pressure
295 psig
(2135 kPa)
295 psig
(2135 kPa)
100 psig
(791 kPa
[abs])
kPa [abs])
(for CRN
registration
only)
220 psig
(1618 kPa
[abs])
220 psig
(1618 kPa
[abs])
N/A 1 lb / 2 lb
Weight /
shipping
weight
3 lb / 4 lb
(1.5 kg / 2.0
kg)
3 lb / 4 lb
(1.5 kg / 2.0
kg)
(0.5 kg / 1.0
kg)
Retraction assembly specficationsTable 1-4:
Specification Description
Sensor compatibility The retraction assemblies are used with 228 - [ ]-20-54-62
only
Wetted materials 315 stainless steel, ethylene polypropylene (EP), unfilled
Teflon, carbon-filled Teflon
Process connection 1 - 1/2 in. MNPT
Maximum operating condition 392 °F (200 °C), 295 psig (2135 kPa [abs])
2 Reference Manual
Description and specifications
Maximum retraction/insertion conditionsTable 1-5:
Description Temperature Pressure
23311-00, mechanical retraction assembly
23311-01, manual retraction assembly
392 °F (200 °C) 295 psig (2135 kPa
[abs])
266 °F (130 °C) 35 psig (343 kPa
[abs])
Ball valve specifications (sold separately)Table 1-6:
Specification Description
Part number 9340065
Wetted materials 316 stainless steel, Teflon TFE
Process connection 1-1/2 in. FNPT
Weight / shipping weight 4 lb / 5 lb (2.0 kg / 2.5 kg)
Ball valve pressure and temperature
Maximum insertion
travel
10.5 in. (267 mm) 12 lb / 15 lb (5.5 kg /
12.0 in. (305 mm) 9 lb / 12 lb (4.5 kg /
Weight / shipping
weight
7.0 kg)
5.5 kg)
Rosemount 228 Sensor 3
Description and specifications
1.4 Ordering information
Rosemount 228 Toroidal Conductivity Sensor Ordering InformationTable 1-7:
Model Sensor type
228 Toroidal Conductivity Sensor
Materials of construction
02 Glass-filled PEEK (standard temperature)
03 Glass-filled PEEK (high temperature)
04 Glass-filled Tefzel
05 Unfilled Tefzel
Process connection
20 5/8 in. 11 UNC
21 3/4 in. MNPT
Cable type
54 Unshielded cable
56 EMI/RFI shielded cable
(5)
(1)
(2)
(3)
(4)
(6)
(7)
Cable length
61 6.1 m (20 ft)
62 457 mm (18 in.)
(1) Not available with options -50-62 and -54-62.
(2) Not available with option -54-62.
(3) This option requires a mounting adapter. This option comes standard with an EPDM gasket (Viton® and
Kalrez® gaskets are also available).
(4) Not available with option -62.
(5) Cable may be extended using the remote junction box PN 23550-00 (sold separately) and extension cables..
(6) Recommended for use with transmitter models 1054 and 2054. May be used with transmitter models 1055,
1056, 1066, 54C, 54eC, 81T, 2081T, 3081T, 4081T, 5081, and XMT, but not recommended.
(7) Recommended for use with transmitter models 1055, 1056, 1066, 56, 54C, 54eC, 5081, and XMT.
(8) For use with option -54 only. Connects sensor used in valve insertion assembly to junction box. Requires
interconnecting cable to connect junction box to transmitter. Use either cable 23294-00 (unshielded) or
23294-05 (shielded).
(8)
4 Reference Manual
2 Install
2.1 Installing the sensor
Keep at least 1 in. (25 cm) between the sensor and the pipe wall. If clearance is too small,
calibrate the sensor in place. Ensure that the sensor is completely submerged in liquid.
Mounting the sensor in a vertical pipe run with the flow from bottom to top is best. If the
sensor must be mounted in a horizontal pipe run, orient the sensor in the 3 o-clock or 9
o'clock position.
Rosemount 228 dimensional drawingFigure 2-1:
Install
Rosemount 228 Sensor 5
Install
Figure 2-2:
Insertion adapter 23242-02 for use with 3/4 in. MNPT threaded process
connection (-21 option)
6 Reference Manual
Install
Figure 2-3:
Insertion adapter 23242-03 for use with 5/8 in. 11 UNC threaded process
connection (-20 option)
Rosemount 228 Sensor 7
Install
Figure 2-4:
Procedure
1.
2. Keep at least 1 in. (2.5 cm) between the sensor and pipe walls.
3. Mount the sensor in a vertical pipe run with flow from top to bottom.
Insertion adapter 2001990 for use with 3/4 in. MNPT threaded process
connection (-21 option)
Mount the sensor in the pipe.
If the clearance is too small, calibrate the sensor in place.
If the sensor must be mounted in a horizontal pipe run, orient the sensor in the
3 o'clock or 9 o'clock position.
4. Ensure that the sensor is completely submerged in liquid.
2.2 Insertion/Retraction Assembly Installation
Requirements
Insertion/Retraction Assembly Installation RequirementsTable 2-1:
Requirement Description
Process connection 1-1/2 in. Larger openings may keep the sensor
from inserting far enough into the process liquid.
Line size 3 in.; 2 in. line requires in-place calibration.
Valve 1-1/2 in. NPT full port valve (PN 9340065)
Retraction clearance 2 ft (0.6 m)
Excess vibration Provide mechanical support if excess vibration is
expected.
8 Reference Manual
Loading...